We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
MERSEN FUSE CC 7,5 GRC 121 TTF 0250 CC75GRC121TTF0250
MPN: Q085252
Alt. SKU: D121GC75V250TF
£461.35
£384.46
Why Choose the Square Body High-Speed Fuse Protistor® Size 121 gR 750VDC IEC 250A With Striker Flush Ends?
This high-speed fuse delivers reliable DC protection up to 750V and 250A, ensuring rapid response to overcurrents and superior safety for critical power electronic applications. The gR curve supports both overload and short-circuit protection for semiconductors.
Engineered with flush ends, metric threads, and an integrated striker for safe remote signalling, this fuse is ideal for precision builds and maintenance efficiency. Fully compliant with IEC standards, it guarantees consistent and trusted performance in demanding industrial environments.
Product Code: Q085252
Key Benefits
- High-speed protection for semiconductor devices with gR characteristic.
- Flush ends with silver-plated brass terminals ensure secure and corrosion-resistant connections.
- Integrated striker indication system for safe and reliable remote signalling of fuse status.
- Robust ceramic body provides excellent insulation and thermal resistance.
- Designed for bolted mounting to ensure stable installation in industrial settings.
- Complies with IEC standards for consistent quality and performance.
Compatibility
This fuse is compatible with semiconductor protection circuits requiring DC voltage ratings up to 750 V and current ratings up to 250 A. It is suitable for use in power converters, inverters, and other DC industrial power electronic applications that require high breaking capacity and fast-acting protection.
Applications
- Protection of power semiconductors in industrial drives and motor controllers.
- DC power supply circuits in renewable energy systems such as solar inverters.
- Battery management and protection in energy storage systems.
- High-speed protection in uninterruptible power supplies (UPS).
- General semiconductor protection in industrial automation equipment.
Technical Specifications
- Item number: Q085252
- Catalogue No: D121GC75V250TF
- Description: Square Body High-Speed Fuse Protistor® Size 121 gR 750VDC IEC 250A With Striker Flush ends metric threads
- EAN/UPC Code: 3605340067743
- Rated voltage DC IEC: 750 V
- Ampere Rating: 250 A
- RoHS Compliant: Yes
- AC or DC: DC
- Speed/Characteristic: gR
- Fuse Size: 121
- Mounting: Bolted
- Melting I2t: 18.05 kA²s
- Max. Rated Breaking Capacity DC: 100 kA
- Design Details: gRC
- Indication System: Yes
- Indication System Type: Striker
- Connection/Terminal Material: Silver-Plated Brass
- Connection/Terminal Type: Flush ends
- Product Width: 51 mm
- Product Length: 131 mm
- Product Height: 55 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.88 kg
- Sell Pack Width: 110 mm
- Sell Pack Length: 200 mm
- Sell Pack Height: 60 mm
- Product group: Semiconductor Protection Fuses
- Body/Insulating Material: Ceramic
- Product Weight: 0.88 kg
- Power Dissipation at Rated Current Value: 46.7 W
Frequently Asked Questions
What does the gR characteristic mean for this fuse?
The gR characteristic indicates that the fuse is designed for semiconductor protection, providing both overload and short-circuit protection with a high breaking capacity suitable for DC applications.
Can this fuse be used in AC circuits?
This particular fuse is rated for DC applications up to 750 V and is optimised for DC semiconductor protection. For AC applications, consult the product specifications or select a fuse rated for AC use.
What is the purpose of the striker indication system?
The striker indication system provides a mechanical signal when the fuse has operated (blown), enabling safe and remote indication of fuse status to facilitate maintenance and reduce downtime.
Is this fuse RoHS compliant?
Yes, this fuse complies with RoHS directives, ensuring it is free from hazardous substances restricted in electrical and electronic equipment.
Common Search Terms
high-speed fuse, semiconductor protection fuse, DC fuse 750V, gR fuse 250A, Protistor fuse size 121, flush end fuse, striker indication fuse, bolted mounting fuse, ceramic body fuse, industrial DC fuse
| Manufacturer Part Number | Q085252 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 3605340067743 |
| Height | 131mm |
| Width | 51mm |
| Depth | 55mm |
| HS Code | 85361090 |
| Country of Manufacture | France |
| Manufacturer | Mersen |
| Alternative Product SKU | D121GC75V250TF |
Write Your Own Review
